EP2888529B1 - Procédé pour fabriquer un émetteur radiant à gaz - Google Patents

Procédé pour fabriquer un émetteur radiant à gaz Download PDF

Info

Publication number
EP2888529B1
EP2888529B1 EP13756049.6A EP13756049A EP2888529B1 EP 2888529 B1 EP2888529 B1 EP 2888529B1 EP 13756049 A EP13756049 A EP 13756049A EP 2888529 B1 EP2888529 B1 EP 2888529B1
Authority
EP
European Patent Office
Prior art keywords
coating layer
gas fired
burner deck
porous ceramic
sintering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13756049.6A
Other languages
German (de)
English (en)
Other versions
EP2888529A1 (fr
Inventor
Nicolas Even
Eddy VERHEYDE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solaronics SAS
Original Assignee
Solaronics SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solaronics SAS filed Critical Solaronics SAS
Priority to EP13756049.6A priority Critical patent/EP2888529B1/fr
Publication of EP2888529A1 publication Critical patent/EP2888529A1/fr
Application granted granted Critical
Publication of EP2888529B1 publication Critical patent/EP2888529B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/16—Radiant burners using permeable blocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/105—Porous plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/106—Assemblies of different layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/10—Burner material specifications ceramic

Definitions

  • the invention relates to the field of gas fired radiant emitters, and more specifically to a method for manufacturing such an emitter, especially an emitter with a porous ceramic burner deck and having a coating layer on it that provides higher emissivity.
  • Such emitters are e.g. used in continuous drying installations in paper drying and coil coating.
  • coatings e.g. ceramic coatings
  • Such coatings can be applied to improve the lifetime or the performance of the surface of the gas burner.
  • Coatings can e.g. be applied that improve temperature resistance, increase emissivity (coefficient of emission) and/or thermal conductivity.
  • such coatings e.g. ceramic coatings
  • Such curing and/or sintering requires a heat treatment in an oven or a furnace during sufficient time to perform the curing and/or sintering process.
  • US4568595 - not directed to a burner plate - discloses a process to provide a ceramic coating layer on a reticulated ceramics plate.
  • a layer of wet coating formulation (containing water, ceramic particles, an organic binder and additives) can be applied by various methods such as troweling, brushing, spraying or with a doctor blade onto the ceramics plate.
  • the coating layer is dried, e.g. in a dryer at 60 °C with moving air. Subsequently the coating layer is sintered in an oven, in which the organic binder is removed due to the high oven temperature and in which the ceramic coating layer is sintered.
  • JP55025773A2 discloses a burner with a honeycomb ceramic plate with perforated holes as combustion surface, which is provided with a coating layer on the combustion surface, in order to improve the heat conductivity (and to obtain a higher heating speed at ignition) of the radiation emitter.
  • a material with higher heat conductivity platinum, silver, magnesium, or the like
  • an inorganic binding material such as glass, alumina, silica, and alkali silicate
  • US 5782629 relates to a porous surface radiant burner assembly provided with a porous burner substrate having a surface including a layer of zircon and an overlying layer of zirconia formed in situ upon exposing the zircon layer to radiant burner operating conditions.
  • the porous surface burner substrate can be in the form of a mat of randomly oriented fibers coated with zircon. The coating is cured and/or sintered in a suitable oven.
  • the zircon layer is exposed to the intended operating conditions of the radiant burner wherein during the initial degradation of the zircon layer, a continuous, adherent layer of zirconia is formed in overlying relationship to the layer of zircon to resist further degradation, thereby increasing the lifetime of the radiant burner.
  • the primary objective of the invention is to provide a more simple method for the production of a gas fired radiant emitter that comprises a coating layer of higher emissivity on and firmly adhering to the ceramic burner deck of the gas fired radiant emitter.
  • a method is claimed to produce a gas fired radiant emitter with increased emissivity.
  • the method comprises the steps of
  • sintering and/or curing is meant that bonding, via sintered bonds and/or cured bonds, is obtained between particles of the coating layer itself; and between particles of the coating layer and the porous ceramic burner deck.
  • the adhesion between the coating layer and the porous ceramic burner deck is achieved by means of sintered and/or cured bonds.
  • a strong coating layer is obtained on the porous ceramic burner deck surface.
  • the coating layer is resisting mechanical action, e.g. scratching.
  • the sintering and/or curing is creating bonds between particles.
  • the fact that sintering and/or curing has been taken place can be observed by a difference in colour of the sintered and/or cured coating layer compared to the coating in uncured state.
  • Sintering and/or curing according to the invention can normally be accomplished in 1 to 2 hours of firing of the radiant emitter. This can e.g. be checked in a simple way by scratching the coating layer and observing a good adhesion of the coating layer to the porous ceramic burner deck. An alternative way of checking that curing and/or sintering has taken place is by observing the colour change of the coating layer.
  • drying Prior to sintering and/or curing the coating, it is recommended to dry the coating layer to obtain a coating layer of higher quality. With drying is meant that water or solvent is removed from the coating layer. Drying of the wet coating layer can be performed at room temperature (e.g. during one or more days, e.g. during 2 or 3 days), or in an oven at elevated temperatures (e.g. at temperatures between 50° and 100°C, e.g. at 80°C or 100°C) during a shorter time period. Drying at room temperature has the benefit that no specific drying equipment (e.g. oven) nor energy are required.
  • room temperature e.g. during one or more days, e.g. during 2 or 3 days
  • elevated temperatures e.g. at temperatures between 50° and 100°C, e.g. at 80°C or 100°C
  • Preferred ranges for the particle size of the ceramic and/or metallic particles of the coating slurry of dispersion is within the range of 0.1 micrometre to 10 micrometre. A more preferred range is between 0.1 micrometre and 3 micrometre, even more preferred between 0.1 and 2 micrometre. Such ranges have the benefit that an improved sintering and/or curing quality is obtained of the coating layer when used in the invention.
  • Ceramic materials that can be used for the porous ceramic burner deck are cordierite or zirconia; partially stabilized zirconia (PSZ), alumina, silicon carbides or other high level technical ceramics. Also possible is the use of aluminum titanates, silicon oxides, corundum or mullite, silicon nitrides or metal-infiltrated ceramics, such as silicon-infiltrated silicon carbide as material for the porous ceramic burner deck.
  • Ceramic particles inorganic, non-metallic particles that when cured and/or sintered in a coating layer result in a ceramic layer.
  • ceramic particles for the invention are oxides, silicates, carbides, titanates and nitrides.
  • Some specific ceramic particles can be added in the recipe to reduce the temperature required for sintering, examples are yttrium oxide or yttrium aluminum garnet (YAG, Y 3 Al 5 O 12 ). The benefit is that sintering is.
  • Preferred metallic particles that can be used for the coating layer are e.g. platinum, silver, magnesium. It is preferred that if metallic particles are used in the coating layer, they are combined with ceramic particles (thus the coating recipe contains metallic and ceramic particles), as such combination leads to a durable coating layer when the method of the invention is applied to make a gas fired radiant emitter. A further benefit is that such recipes can reduce the temperature that is required for sintering, facilitating the sintering according to the invention.
  • Preferred gas fired radiation emitters that are made according to the method of the invention comprise one or more radiant screens above the porous ceramic burner deck.
  • the gas fired radiation emitters are assembled after drying the wet coating layer that is applied onto the porous ceramic burner deck.
  • the different parts of the gas fired radiation emitter are then assembled together (body, porous ceramic burner deck, one or more radiant screens if present and other parts if present) forming the gas fired radiant emitter after which the sintering and/or curing is performed by operating the gas fired radiant emitter in which the porous ceramic burner deck is mounted, via supplying combustible gas to it and igniting the combustible gas after it has flown through the porous ceramic burner deck
  • the operating of the gas fired radiant emitter to sinter and/or cure the coating layer is performed after the gas fired radiant emitter is installed in a continuous dryer installation.
  • a continuous dryer installation can be an installation through which sheet or web like material is continuously led through to treat it. Examples are in the drying of paper or in the drying and/or curing of coatings of sheet metal.
  • Such continuous dryer installations can comprise gas fired radiant emitters installed in different groups in the dryer installation.
  • the operating of the gas fired radiant emitter to sinter and/or cure the coating layer is performed when the continuous dryer installation is installed in the premises where it is used.
  • the curing and/or sintering is performed when the continuous dryer installation is in use (e.g. drying a paper web, or drying or curing a coating on sheet metal).
  • Such embodiment has the additional benefit that the thermal energy generated for the sintering and/or curing - that would otherwise be lost - is used functionally in the drying installation for drying the web (e.g. paper or metal sheet) that is treated in the installation, without any negative effect occurring.
  • the gas fired radiant emitter is a replacement gas fired radiation emitter; and the sintering and/or curing of the coating layer is performed by operating the gas fired radiant emitter after installing (thereby replacing another emitter which can be broken or damaged) the replacement gas fired radiant emitter in the continuous dryer installation in which it will be used.
  • the sintering and/or curing of the coating layer is preferably performed with the continuous dryer installation in use, e.g. drying paper web or a coating layer on sheet metal, resulting in efficient use of energy.
  • Gas fired radiated emitters can also be replaced because the ones installed have, by conception, lesser characteristics such as emissivity, efficiency, power density or lifetime than the ones with which they are replaced.
  • the sintering and/or curing is performed away from the continuous dryer installation in which the gas fired radiation burner will be used.
  • the sintering and/or curing can be performed by installing the radiant emitter in a bench in which it is supplied with combustible gas and ignited to sinter and/or cure the coating layer.
  • Such exemplary method has the benefit that no separate oven and heating/firing system is required to sinter and/or cure the coating, while a higher quality sintering and/or curing can be performed as the power (e.g. gas mixture) supplied to the gas fired radiant emitters can be tuned better.
  • Such method can also be preferred for gas fired radiant emitters that will be used as spares and could lie a long time in a warehouse: the sintering and/or curing is then performed relatively shortly after coating and prior to - possibly long - storage in a warehouse which avoids deterioration of the uncured/ unsintered coating layer that could possibly occur when storing an unsintered/ uncured gas fired radiant emitter with an unsintered/ uncured coating layer during a long time.
  • the coating layer has - after sintering and/or curing - an emissivity (coefficient of emission) that is higher, preferably at least 30% higher, more preferably 50% higher, even more preferably 75% higher - and even more preferably more than 100% higher - than the emissivity (coefficient of emission) of the surface in uncoated state of the ceramic burner deck. It is a benefit that higher infrared emission is obtained, increasing the performance of the drying installation in which such a gas fired radiant emitter is used. Such increase of the emissivity (coefficient of emission) can e.g. be obtained by using silicon carbide as ceramic particles in the coating, or at least using silicon carbide as ceramic particles in the top layer of the wet coating.
  • the suspension or slurry of particles in water or in a solvent that is applied to form the wet coating layer can be made via mixing appropriate ingredients.
  • a suspension or slurry formulation can comprise - besides water and/or solvent, ceramic particles and/or metallic particles - also other ingredients such as dispersing aids (e.g. surfactants), antifoaming agents, an organic binder and a thickener (product to adjust the viscosity of the dispersion).
  • the coating layer is applied in wet or viscous state onto the porous ceramic burner deck, e.g. with viscosity in the range 10 and 25000 centipoise and e.g. by means of spraying or dipping.
  • a preferred range for the viscosity is 10 to 2000 centipoise, more preferred 10 to 500 centipoise.
  • preferred ranges for the viscosity is 5000 to 25000 centipoise, more preferably 15000 to 25000 centipoise.
  • the wet coating layer does not comprise zirconium silicate, as presence of zirconium silicate is negative for the lifetime of the radiant emitter.
  • the coating layer is devoid of the element zirconium.
  • the coating layer comprises silicon carbide. Even more preferred is when at least 50% by weight, more preferably at least 75% by weight, of the total amount of ceramic particles in the coating layer is silicon carbide. Silicon carbide particles have shown to result in high quality sintered / cured layers when using the sintering and/or curing method as in the invention while providing a coating layer with high coefficient in emission, beneficial for the performance of the gas fired radiant emitter.
  • At least two wet coating layers are applied on top of each other for the formation of a ceramic coating layer.
  • One or both comprise ceramic particles.
  • coating layer When several (more than one) coating layers are applied, it is preferred to dry a coating layer after it has been applied in wet state, prior to applying another wet coating layer. It is also preferred to dry a last coating layer applied in wet stated prior to sintering and/or curing the coating layers.
  • a first wet coating layer (meaning the first coating layer applied onto the porous ceramic burner deck) has a similar composition in terms of ceramic particles as the burner deck on which the coating layer is applied.
  • the first wet coating layer does not comprise zirconium silicate.
  • the first coating layer is devoid of products that comprise the element zirconium.
  • a second coating layer can be applied - preferably after drying the first coating layer - that has a specific composition to reach specific performance objectives, e.g. a high coefficient of emission of the burner deck.
  • the second wet coating layer does not comprise zirconium silicate.
  • the second coating layer is devoid of products that comprise the element zirconium.
  • both coating layers are sintered and/or cured in one and the same process. It is a benefit of this embodiment that excellent adhesion of the resulting coating layer to the porous ceramic burner deck is obtained, while obtaining targeted functional performance (a high coefficient of emission) of the sintered and/or cured coating layer.
  • the top coating layer is comprising silicon carbide.
  • the top coating layer is the coating layer that is applied last when applying a multiple of coating layers to form the final coating layer.
  • the ceramic particles in the top coating layer are for more than 90% by weight of the ceramic particles of the second coating layer silicon carbide.
  • three (or even more) coating layers can be applied.
  • the ceramic particles are similar in type and/or content as in the ceramic burner deck.
  • the top layer comprises ceramic particles selected to create high emissivity.
  • Intermediate layers can be selected to optimize adhesion between the first layer and the top layer, comprising e.g. compositions that contain a mix or mixes of the ceramic particles of the first layer and the ceramic particles of the top layer. If several intermediate layers are used, preferably the intermediate layers comprise an increasing amount of ceramic particles of the top layer from the first to the last intermediate layer (as counted from the first layer that is applied onto the burner deck).
  • the coating is applied in such a way that after sintering and/or curing the coating layer has an average thickness within the range of 10 - 500 micrometre, preferably within the range of 10 - 100 micrometre, more preferably 10 - 60 micrometre.
  • Such thickness range has shown to have synergetic benefits in that the sintering and/or curing process can be performed easily according to the invention resulting in a good quality sintered and/or cured coating layer that is covering the roughness of the porous ceramic burner deck (e.g. a perforated porous ceramic burner deck, e.g. a perforated porous ceramic burner deck that has through perforations) and avoids filing the perforations of the porous ceramic burner deck.
  • a perforated porous ceramic burner deck e.g. a perforated porous ceramic burner deck, e.g. a perforated porous ceramic burner deck that has through perforations
  • the thickness of the coating layer can be measured using SEM, after making a cross section of the porous ceramic burner deck.
  • the wet coating layer is applied on only part of the surface of the porous ceramic burner deck.
  • the location of the coating layer can be selected to optimize performance of the coating layer and/or of the gas fired radiant emitter.
  • One way of execution of this embodiment is when the porous ceramic burner deck comprises two or more ceramic tiles that are positioned next to each other. One or more of the ceramic tiles can be coated, while others are not.
  • only a central part of the porous ceramic burner deck is provided with a coating layer.
  • the top part of the porous ceramic burner deck of the gas fired radiant emitter is provided with a coating layer. It is beneficial to provide the parts or regions of the porous ceramic burner deck that in use get the highest temperature with a functional coating to increase the emissivity locally. This way, more thermal energy is radiated from such regions, cooling the burner deck in such regions thereby increasing lifetime of the radiant emitter.
  • the wet coating layer is devoid of an organic binder.
  • An organic binder could create adhesion after drying, but would burn out in sintering and/or curing resulting in increased porosity of the sintered and/or cured coating layer, which would reduce the mechanical strength and/or durability of the coating layer.
  • Trials have shown that slurry formulations without organic binder allowed to obtain sintered and/or cured coating layers with good adhesion and good performance when using the method of the invention.
  • the wet coating layer comprises an organic binder.
  • Such method can be beneficial to create porosity of the cured/sintered coating layer (as the organic binder is burnt during the curing and/or sintering) which can in certain applications be beneficial for the distribution of the combustible gas when using porous ceramic burner decks with fine pores through which the combustible gas is flowing.
  • Figure 1 shows an example of a gas fired radiant emitter made according to the method of the invention.
  • Figure 1 shows a gas fired radiant emitter 1, comprising a housing with a body 2 which together with a peripheral band 3 encloses a plate shaped burner deck (consisting out of two perforated ceramic tiles 5a and 5b) and a screen 6 ( figure 1 shows a radiant burner with one screen, in a similar way radiant burners with two superimposed parallel screens can also be provided).
  • the body 2 has an inlet 8 which connects to a premixing space 9.
  • the premixing space is delimited between the body 2 and the burner deck which is formed by the perforated ceramic tiles 5a, 5b.
  • the outer side of the burner deck 5a, 5b which is directed towards the combustion space 10 is referred to as the burner surface 11, the rest of the burner deck 5a, 5b is referred to as the base.
  • the burner deck formed by the perforated ceramic tiles 5a, 5b has a plurality of through holes which make it possible for a fuel mixture, for example a gas/air mixture, to enter the combustion space 10 after being thoroughly mixed in the premixing space 9.
  • the fuel mixture can then ignite or be ignited in this combustion space 10 after which it heats up at least the burner surface 11 of the burner deck 5a, 5b as well as the screen 6 to a temperature of approximately 900-1300 °C.
  • This high temperature has the effect of making both the screen 6 and the outer burner surface 11 red hot such that they start to produce significant infrared radiation or radiant heat flux.
  • the burner surface 11 comprises a plurality of slits 12 positioned adjacent one another.
  • the bottoms of the slits 12 are referred to as the inner/lowest level and the top sides of the wall parts delimiting the slits 12 are referred to as the outer/highest level of the burner surface 11.
  • the burner deck here extends in a vertical direction and is built up of two perforated ceramic tiles 5a, 5b positioned above one another.
  • the burner surface of the upper perforated ceramic tile 5b is provided with a coating layer 15, whereas the burner surface of the lower perforated ceramic tile 5a has remained uncovered. It is also possible according to the invention to apply the coating layer on both perforated ceramic tiles 5a and 5 b.
  • the coating layer 15 is applied on the porous ceramic burner deck as a wet coating layer in such a way, or the coating application is followed by a manufacturing process such, that the gas permeability of the plate shaped radiant burner elements is not substantially different in the region where the coating is present from the region where no coating is present.
  • the coating layer is dried at room temperature during 2 days after which the perforated ceramic tile(s) 5a, 5b can be mounted into the gas fired radiant emitter 1 to form its burner deck. Sintering and curing of the coating layer was performed by mounting the gas fired radiant emitter 1 into the continuous drying installation and supplying combustible gas to the gas fired radiant emitter 1 on the continuous drying installation, with the installation being in use drying a paper web.
  • An example is to manufacture the perforated ceramic tile out of cordierite and to apply onto it a wet coating comprising silicon carbide as ceramic particles. Good quality curing was obtained and the cured coating generated a coefficient of emission that was 30% higher compared to a similar porous ceramic burner deck without coating layer.
  • An example for a coating (slurry or dispersion) formulation as can be used in the invention is as follows: 50 gram of a surfactant is added to 1 kg of water while stirring. Added is 2 kg of silicon carbide powder during intensive stirring. A viscosity of 500 centipoise is obtained. Such a slurry was applied onto a porous ceramic burner deck by means of spraying.
  • ceramic additives up to 3% by weight of the amount of silicon carbide have been added.
  • Such additives are e.g. aluminium oxide, and/or yttrium oxide and/or yttrium aluminum garnet (YAG, Y 3 Al 5 O 12 ).
  • Such additives facilitate the sintering and curing of the coating layer.
  • compatibility layer can for example be a mix between the material out of which the porous ceramic burner deck is made of and the material of the top coating layer, or a layer of material out of which the porous ceramic burner deck is made.
  • a ceramic burner deck made out of cordierite was coated with a first wet coating layer comprising cordierite particles and a second wet coating layer comprising silicon carbide particles.
  • a ceramic burner deck was made out of aluminum oxide and coated with a first wet coating layer comprising aluminum oxide particles and with a second wet coating layer comprising silicon carbide particles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Claims (11)

  1. Procédé pour fabriquer un émetteur radiant à gaz (1) à émissivité accrue, comprenant les étapes de
    - fourniture d'une platine de brûleur en céramique poreuse (5a, 5b),
    - application d'une couche de revêtement humide sur ladite platine de brûleur en céramique poreuse (5a, 5b), dans laquelle ladite couche de revêtement humide comprend des particules de céramique et/ou des particules métalliques, qui formeront une couche de revêtement à émissivité accrue comparativement à la platine de brûleur en céramique poreuse (5a, 5b) sans la couche de revêtement ;
    dans lequel un frittage et/ou un durcissement de ladite couche de revêtement est réalisé par l'actionnement dudit émetteur radiant à gaz (1) dans lequel la platine de brûleur en céramique poreuse (5a, 5b) est montée, via une alimentation en gaz combustible dudit émetteur radiant (1) et l'allumage dudit gaz combustible après qu'il a circulé à travers la platine de brûleur en céramique poreuse (5a, 5b), moyennant quoi la couche de revêtement non durcie et/ou non frittée est transformée en une couche de revêtement frittée et/ou durcie adhérant à ladite platine de brûleur en céramique poreuse (5a, 5b) via des liaisons frittées et/ou durcies.
  2. Procédé selon la revendication 1, dans lequel ledit actionnement dudit émetteur radiant à gaz (1) pour fritter et/ou durcir ladite couche de revêtement est réalisé après que l'émetteur radiant à gaz (1) a été installé dans une installation de séchage continu.
  3. Procédé selon la revendication 2, dans lequel ledit actionnement dudit émetteur radiant à gaz (1) pour fritter et/ou durcir ladite couche de revêtement est réalisé lorsque l'installation de séchage continu est installée dans les locaux où elle est utilisée.
  4. Procédé selon la revendication 2 ou 3, dans lequel ledit émetteur radiant à gaz (1) est un émetteur à rayonnement à gaz de remplacement (1) ; et dans lequel le frittage et/ou le durcissement de ladite couche de revêtement dudit émetteur radiant à gaz (1) par l'actionnement dudit émetteur radiant à gaz (1) est réalisé après l'installation dudit émetteur radiant à gaz de remplacement (1) dans l'installation de séchage continu dans laquelle il sera utilisé.
  5. Procédé selon la revendication 2, dans lequel ledit frittage et/ou durcissement est réalisé à distance de l'installation de séchage continu dans laquelle le brûleur à rayonnement à gaz (1) sera utilisé.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel la couche de revêtement - après frittage et/ou durcissement - possède une émissivité qui est au moins 30 % supérieure à l'émissivité de la surface à l'état non revêtu de la platine de brûleur en céramique (5a, 5b).
  7. Procédé selon l'une quelconque des revendications précédentes, dans lequel au moins deux couches de revêtement humide sont appliquées l'une au-dessus de l'autre pour la formation d'une couche de revêtement en céramique.
  8. Procédé selon l'une quelconque des revendications précédentes, dans lequel ladite couche de revêtement humide est appliquée sur uniquement une partie de la surface de ladite platine de brûleur en céramique poreuse (5a, 5b).
  9. Procédé selon l'une quelconque des revendications précédentes, dans lequel ladite couche de revêtement comprend du carbure de silicium.
  10. Procédé selon la revendication 7, dans lequel ladite couche de revêtement supérieure comprend du carbure de silicium.
  11. Procédé selon l'une quelconque des revendications précédentes, dans lequel ladite couche de revêtement est dépourvue de produits qui comprennent l'élément zirconium.
EP13756049.6A 2012-08-24 2013-08-22 Procédé pour fabriquer un émetteur radiant à gaz Active EP2888529B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13756049.6A EP2888529B1 (fr) 2012-08-24 2013-08-22 Procédé pour fabriquer un émetteur radiant à gaz

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12290280 2012-08-24
PCT/EP2013/067467 WO2014029846A1 (fr) 2012-08-24 2013-08-22 Procédé de fabrication d'un émetteur rayonnant à gaz
EP13756049.6A EP2888529B1 (fr) 2012-08-24 2013-08-22 Procédé pour fabriquer un émetteur radiant à gaz

Publications (2)

Publication Number Publication Date
EP2888529A1 EP2888529A1 (fr) 2015-07-01
EP2888529B1 true EP2888529B1 (fr) 2020-09-30

Family

ID=47137637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13756049.6A Active EP2888529B1 (fr) 2012-08-24 2013-08-22 Procédé pour fabriquer un émetteur radiant à gaz

Country Status (2)

Country Link
EP (1) EP2888529B1 (fr)
WO (1) WO2014029846A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203837085U (zh) * 2014-04-22 2014-09-17 金卫群 平衡式高效户外取暖器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525773A (en) 1978-08-14 1980-02-23 Matsushita Electric Ind Co Ltd Infrared radiant burner
US4568595A (en) 1984-04-26 1986-02-04 Morris Jeffrey R Coated ceramic structure and method of making same
US5147201A (en) * 1990-11-19 1992-09-15 Institute Of Gas Technology Ultra-low pollutant emissions radiant gas burner with stabilized porous-phase combustion
US5380192A (en) * 1993-07-26 1995-01-10 Teledyne Industries, Inc. High-reflectivity porous blue-flame gas burner
US5782629A (en) 1996-01-22 1998-07-21 The Ohio State University Radiant burner surfaces and method of making same
US5668072A (en) * 1996-05-09 1997-09-16 Equity Enterprises High emissivity coating
US20060141413A1 (en) * 2004-12-27 2006-06-29 Masten James H Burner plate and burner assembly
WO2011147654A1 (fr) * 2010-05-25 2011-12-01 Solaronics S.A. Élément de brûleur présentant des différences locales de propriétés physiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2014029846A1 (fr) 2014-02-27
EP2888529A1 (fr) 2015-07-01

Similar Documents

Publication Publication Date Title
US4889481A (en) Dual structure infrared surface combustion burner
US10174996B2 (en) Method of drying honeycomb formed body
US5749721A (en) Ceramic combustion support element for surface burners and process for producing the same
US8470430B2 (en) Honeycomb structure and method for manufacturing the same
US10232299B2 (en) Honeycomb structure
US20090235552A1 (en) Drying method of formed ceramic article
US20060141413A1 (en) Burner plate and burner assembly
US20060141412A1 (en) Burner plate and burner assembly
JP2016055282A (ja) ハニカム構造体
KR20110110573A (ko) 면상 발열체의 제조방법 및 그에 의한 면상 발열체
EP2888529B1 (fr) Procédé pour fabriquer un émetteur radiant à gaz
JP2008120652A (ja) セラミックハニカム成形体の焼成方法
WO2013032368A2 (fr) Revêtement de protection thermique haute température
US5782629A (en) Radiant burner surfaces and method of making same
CN106083115B (zh) 耐1500℃高温的隔热瓦涂层及其制备方法
EP2742289B1 (fr) Carreau de céramique pour le revêtement intérieur de chambres de combustion, en particulier de turbines à gaz, et son procédé de fabrication
EP2116520B1 (fr) Procédé de fabrication d'un corps sous forme de segments de nids d'abeille liés entre eux
JP2001158659A (ja) アルミ溶湯用ライニング材
US20090288758A1 (en) Method of producing honeycomb segment bonded article
JPH06207785A (ja) 加熱成型加工用セッターおよびその製法
JP3307522B2 (ja) 焼物調理用燃焼装置の表面燃焼バーナ
WO2011147654A1 (fr) Élément de brûleur présentant des différences locales de propriétés physiques
US20130137056A1 (en) Heat chamber
JPS62221445A (ja) 燃焼触媒用コ−テイング組成物
JP4497798B2 (ja) マイクロ波加熱炉の操業方法および被加熱物の載置台

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141114

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190702

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200515

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1319165

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013072941

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1319165

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200930

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210201

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210130

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013072941

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

26N No opposition filed

Effective date: 20210701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210831

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210130

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210822

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210822

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602013072941

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE GBR, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230816

Year of fee payment: 11

Ref country code: DE

Payment date: 20230808

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200930